Chilled Water Pump Head Calculation Now
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Total Head=Pipe Friction Loss+Equipment Pressure Drop+Control Valve Loss+Safety MarginTotal Head equals Pipe Friction Loss plus Equipment Pressure Drop plus Control Valve Loss plus Safety Margin Step-by-Step Calculation Methodology 1. Identify the Critical Path
[ H_total = H_f + H_eq + H_velocity ] But chilled water systems are almost always closed loops.
| Component | Pressure drop (m water column) | |-----------|-------------------------------| | Chiller evaporator | 5–10 | | AHU coil | 2–5 | | 2-way control valve | 2–5 | | Strainer (clean) | 1–2 | | Pipe friction | 2–6 m per 100 m |
: In a closed loop, the water on one side of the system balances the water on the other side. The pump does not need to lift the water against gravity because the descending water "pushes" the ascending water up. Total Head Formula :
Accurate chilled water pump head calculation requires:
Total Head=Pipe Friction Loss+Equipment Pressure Drop+Control Valve Loss+Safety MarginTotal Head equals Pipe Friction Loss plus Equipment Pressure Drop plus Control Valve Loss plus Safety Margin Step-by-Step Calculation Methodology 1. Identify the Critical Path
[ H_total = H_f + H_eq + H_velocity ] But chilled water systems are almost always closed loops.
| Component | Pressure drop (m water column) | |-----------|-------------------------------| | Chiller evaporator | 5–10 | | AHU coil | 2–5 | | 2-way control valve | 2–5 | | Strainer (clean) | 1–2 | | Pipe friction | 2–6 m per 100 m |
: In a closed loop, the water on one side of the system balances the water on the other side. The pump does not need to lift the water against gravity because the descending water "pushes" the ascending water up. Total Head Formula :
Accurate chilled water pump head calculation requires:
